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快速减压条件下液滴热动力学行为的实验研究
Alternative TitleExperimental Study on Thermal-Dynamical Behaviors of Liquid Droplets During Quick Depressurization
杜王芳; 赵建福; 李凯
Source Publication工程热物理学报
2012-08-15
Volume33Issue:8Pages:1349-1352
ISSN0253-231X
Abstract实验研究了快速降压过程中悬挂单水滴闪蒸/冻结过程,得到了典型条件下液滴闪蒸/冻结过程的热动力学特征,并基于实验观测结果,探讨了不凝气体对液滴闪蒸/冻结热动力学过程的影响。实验发现,起始冻结时的液滴过冷度近似为常数,而再辉温度对应于终态蒸汽分压所确定的气固相变平衡温度。这些结果有助于正确预言高真空环境中的液滴闪蒸/冻结特征。
Other AbstractThe evaporating-freezing process of single pensile water droplet during quick depressurization is studied experimentally. The typical characteristics of the thermal-dynamical behaviors of this process are obtained. Based on the experimental observations, the inuences of non-condensable gases on the process are analyzed and discussed in detail. It is pointed out that the subcooling corresponding to the onset of freezing of the droplet is nearly a constant, and the recalescence temperature is approximatively equal to the vapor-solid equilibrium temperature determined by the partial pressure of vapor at the terminal state. The present results are helpful for predicting correctly the evaporating-freezing processes of liquid droplets in high vacuum environment.
Keyword液滴 闪蒸 冻结 不凝气体
Subject Area微重力流体力学
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Indexed ByCSCD ; EI
Language中文
Funding Organization中国科学院“知识创新工程”资助项目
CSCD IDCSCD:4616311
DepartmentNML微重力两相流与燃烧
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/46442
Collection国家微重力实验室
Corresponding Author赵建福
Recommended Citation
GB/T 7714
杜王芳,赵建福,李凯. 快速减压条件下液滴热动力学行为的实验研究[J]. 工程热物理学报,2012,33(8):1349-1352.
APA 杜王芳,赵建福,&李凯.(2012).快速减压条件下液滴热动力学行为的实验研究.工程热物理学报,33(8),1349-1352.
MLA 杜王芳,et al."快速减压条件下液滴热动力学行为的实验研究".工程热物理学报 33.8(2012):1349-1352.
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